Laserfiche WebLink
<br />*Barium Chloride Mixing Tank <br />• This is a 6 ft. diam x 4 ft. high, 840-gallon, FRP tank with an <br />agitator for mixing barium chloride and water to yield a 10% BaCI~ solu- <br />tion. The solution is added continuously to the reaction ve~~sel and its <br />addition causes the radium to pr2cipitate as radium-barium sulfate. <br />*Lime Mixing Tank <br />This is an 8 ft. diam x 4 ft. high, 1500-gallon, FRP t~~nk with an <br />agitator for mixing calcium oxide and water to yield slaked "ime. <br />This slurry is added on an as required basis so that the pH of the' <br />outflow from Earthen Pond No. 3 is between 7.0 and 9.0. <br />*Chlorine <br />A cylinder of sodium hypochlorite weak solution is located near <br />the reaction vessel and its addition is on an as required ba<_•is to <br />control algae buildup. <br />• Since October, 1976, the precipitation of Ra226, suspended solids, <br />and pH were well controlled with only barium chloride and Separan IJP-30. <br />Ferric sulfate and lime have been kept in a "standby" condition since then. <br />To date the water treatment plant has provided all that is required <br />to ensure that the outflow from Earthen Pond No. 3 meets all the control <br />specifications for effluents as established by the Colorado Ciepartment of <br />Health and U.S. Environmental Protection Agency (see Exhibit G, Water <br />Information). Any unplanned spills will require diversion back to the <br />ponds or to the water treatment plant. <br />D-10 <br />